I've got a marvellous marble table inlaid with all my signature designs in mother of pearl and mirrors. I love finding strange lamps - I've got a wonderful lamp with a Peter Pan-like reclining figure on the base.

I don't have any favourite homeware stores - I prefer a more personal approach. I'm inspired by friends' houses, their paintings and objects. My friend [the fashion designer] David Sassoon had his house done over by [interior designer] Nicky Haslam, and it's very inspirational.

It's very important to fill your house with your own personal objects. My top tip is: display all the things you love.

My second tip relates to lighting - lighting is very important. Highlight your treasured objects with spotlights or nice lamps.

I like a mix of wallpaper and paint on the walls - years ago I designed a range of wallpaper. My walls are all colours of the rainbow, cascading down to the ground. On the floor I have beautiful glittery tiles by Amtico that follow the lines of colour on the wall, so a swathe of yellow wall turns into a section of yellow floor, and so on.

I designed my first bed linen in 1971, and now they're collectors' items. It's wonderful seeing your designs come to life. Bedspreads are such an easy way to makeover a room - they're instant gratification.

My new bed linen collection for Ashley Wilde is based on some of my classic fabric prints: Mexican sombreros, paisley daisies and Cretian lilies. I can't wait to sleep with them - not that I spend much time in bed! Ashley Wilde's previous celebrity designers include Twiggy and Kylie - fabulous!

There aren't any no-nos when it comes to interior design - often you have to try things out to find they don't work.

Interior design needs to be practical as well as beautiful - for example, it's no good if you can't keep the place tidy.

I think that people should do more craft, but of course we're all so busy. I only got around to making half of one of my own needlepoint designs.

My next project is a book, which is coming out in September. It's a collection of my early work from 1961-71, including designs I made when I was at college.